Limitation on security height by law
In accordance with the amendment to the Rent Law regarding fair rent, the legislature found it appropriate to limit the types of collateral, the amount of the collateral, and the cost of the collateral.
The law itself defines collateral as a ‘guarantee’ to secure the tenant’s obligations arising from the lease.
The law limits in a cogent provision that cannot be relied on (section 25 to the Rent Law) the total monetary cost on the part of the tenant for security is one-third of the rental period, or in an amount equal to three months of rent, whichever is lower.
Thus, the landlord must not demand from the tenant security whose financial cost is higher than that.
But I have never encountered such a high demand from the landlord.
Even in areas with a great demand such as central Tel Aviv.